6306LU NTN Radial/Deep Groove Ball Bearings Features & Specifications:Bore Diameter : 30 mmprecision rating : ISO Class 0outside diameter : 72 mmfinish/coating : Uncoatedoverall width : 19 mmbore type : Roundbearing material : High Carbon Chrome Steelcage material : Steelclosure type : Single Sealinner ring width : 19 mmouter ring...